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Friends:
I'd be interested in knowing other examples of species pairs with songs
that humans find difficult to distinguish.
In eastern north america the classical examples are Scarlet/Summer
Tanagers and Pine Warbler/Chipping Sparrow/Wormeating Warbler/Dark-eyed
Junco.
I hear enough Tanagers that I can tell them apart but before that I
found them easy to distinguish as sonograms. And sonograms separate the
other birds pretty well too.
What are your other favorite examples? Can you tell them apart easily
with sonograms?
Steve Pelikan
Klas Strandberg wrote:
> At 09:11 2007-05-24, you wrote:
>> Exactly. Though, there are sometimes individuals who do not sing such
>> a pronunced end phrase (which was probably the reason why I initially
>> misidentified the bird). In any case one can distinguish the two
>> species by listening carefully for a longer period of time. The
>> Blackcap songs are always shorter than those of the Garden Warbler.
>
> No, not always.
> On top of it, a Blackcap can sing the most peculiar songs and keep
> clever birders busy for minutes before it reveals itself with some
> typical sound. I have never heard of any interesting variations among
> Garden warblers.
>
> Klas.
>
>
>> Raimund
>>
>> Klas Strandberg <> wrote:
>>
>>> The "thumb rule" is that the Blackcap ends it's phrase with some
>>> strong and flute-like tones, while the Garden Warbler can go on for
>>> minutes with it's unstructured "blabber".
>>> There is a very "potent" Blackcap at the Telinga site.
>>>
>>> Klas.
>>>
>>>
>>> At 01:11 2007-05-24, you wrote:
>>>> --- In "Raimund Specht"
>>>> <recordingbird@> wrote:
>>>>> To illustrate the principle of dithering, I have prepared a quick
>>>>> example by using the Black cap recording that I made a few weeks ago
>>>>> with my new Fostex FR-2LE (thanks to Rombout de Wijs who notified me
>>>>> that is was not a Garden warbler).
>>>>>
>>>> I cannot contribute anything to this discussion. But I'd LOVE to know
>>>> the "rule of thumb" which helps distinguish Blackcap from Garden
>>>> Warbler in such a short cut (or even one a bit longer....)
>>>>
>>>> Chris
>>>>
>>>>
>>>>
>>>> "While a picture is worth a thousand words, a
>>>> sound is worth a thousand pictures." R. Murray Schafer via Bernie
>> Krause
>>>> Yahoo! Groups Links
>>>>
>>>>
>>>>
>>> Telinga Microphones, Botarbo,
>>> S-748 96 Tobo, Sweden.
>>> Phone & fax int + 295 310 01
>>> email:
>>> website: www.telinga.com
>>>
>>>
>>>
>>
>>
>>
>> "While a picture is worth a thousand words, a
>> sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause
>>
>> Yahoo! Groups Links
>>
>>
>>
>
> Telinga Microphones, Botarbo,
> S-748 96 Tobo, Sweden.
> Phone & fax int + 295 310 01
> email:
> website: www.telinga.com
>
>
>
>
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